Binder



FIG. 1 is a detailed front elevational view of a binder;

FIG. 2 is a left side elevational view of the binder of FIG. 1, the right side elevational view being a mirror image thereof;

FIG. 3 is a top plan view of the binder of FIG. 1;

FIG. 4 is a bottom plan view of the binder of FIG. 1; and,

FIG. 5 is a bottom front right perspective view of the binder of FIG. 1.

The broken lines in the figure drawings represent environmental structure and form no part of the claimed design. 

The ornamental design for a binder, as shown and described. 